diff options
| -rw-r--r-- | MdePkg/Library/BaseLib/X86Thunk.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/MdePkg/Library/BaseLib/X86Thunk.c b/MdePkg/Library/BaseLib/X86Thunk.c index 72c918756d..6b6e9f0f12 100644 --- a/MdePkg/Library/BaseLib/X86Thunk.c +++ b/MdePkg/Library/BaseLib/X86Thunk.c @@ -249,7 +249,9 @@ AsmThunk16 ( ASSERT ((UINTN)ThunkContext->RealModeBuffer < 0x100000);
ASSERT (ThunkContext->RealModeBufferSize >= m16Size);
ASSERT ((UINTN)ThunkContext->RealModeBuffer + m16Size <= 0x100000);
-
+ ASSERT (((ThunkContext->ThunkAttributes & (THUNK_ATTRIBUTE_DISABLE_A20_MASK_INT_15 | THUNK_ATTRIBUTE_DISABLE_A20_MASK_KBD_CTRL)) != \
+ (THUNK_ATTRIBUTE_DISABLE_A20_MASK_INT_15 | THUNK_ATTRIBUTE_DISABLE_A20_MASK_KBD_CTRL)));
+
UpdatedRegs = InternalAsmThunk16 (
ThunkContext->RealModeState,
ThunkContext->RealModeBuffer
|